Power-transmitting device.



N. HER ZMARK. POWER TRANSMITTING DEVICE.

APPLICATION FILED 0OT.2B, 1912.

Patented June 16, 1914.

moons nnazmanx, or rams. raancn.

IOWEE-TRANSMITTING DEVICE.

Specification of. Letters I'atcnt.

PatentedJune 1c. 1914.

Application filed October 28, 1912. Serial No. 728,158.

To all whom it may concern Be it known that I, NICOLAS HERZMABK, asubject of the Emperor of Russia, and a resident of 7 Rue de Poliveau,Paris, France, have invented certain new and useful Improvements inPower-Transmitting Devices, of which the following is a specification.

The present invention relates to power transmitting devices and moreparticularly to means for transmitting intermittent rotary movements toa distance which are based upon the employment of the cable which formsthe object of the United States application Serial Number 666,539, filedDecember 18th, 1911, or of equivalent cables. This device ischaracterized by the fact that the sheath or envelop which surrounds thecable in its passage over the transmit-tlng or receiving apparatuscomprises a movable portion connected with the controlling member or thecontrolled member. Furthermore the device presents thepeculiarity ofpermitting of the reception of a movement of rotation in any plane otherthan that of the transmission apparatus.

An embodiment of a device in accordance with this invention isillustrated in the accompanying drawing, in which:

Figure 1 is an elevation of the transmitting apparatus. Fig. 2 is asection on the line 22 in Fig. 1. Fig. 3 is an internal view of thetransmitting disk, with a part broken away to show a detail ofconstruction more clearly. Fig. 4 is an internal view of the cup portionof the transmitting apparatus. Fig. 5 is an end elevation of the partshown in Fig. 4. Figs. 6, 7 and 8 are diagrammatic views. Fig. 9 is aperspective of a modified form of conductor and Fig. 10 is a diagram ofa further modification.

The apparatus consists essentially of a transmitting apparatus a (Fig.6) and of a receiving apparatus 6 upon which a cable a of the typedescribed in my copending application Serial Number 666,539 or of ananalogous type is wound. Any rotation of the transmitter produces anequal rotation in the same direction of the receiver.

The transmitting apparatus (Figs. 1 and 2) consists broadly of a disk dcontrolled by a lever e and pivoted to the center f of a cup f, insidewhich it isadapted to rotate. The disk 03 is provided on its peripherywith a groove 03 in which the cable 0 is wound. The cable 0 enters thecup 1 through a threaded tangential socket 9 (Figs. Q and 5) velop 0(Fig. 9) which incloses the cable in its passage from the transmitter tothe receiver is screwed.

The extremity of the cable 0 is fixed to the disk d in the followingmanner (Fig. 3) The convolutions of the helicoidal winding of the cablethrough which compressional efl'ortsare transmitted terminate in contactwith a stop d Fig. 3) which obturates the groove d. T e tensional wires0 (Fig. 9)'which form the core of the cable 0 enter a passage (i bendtoward the center of the disk and are wound around a screw 72. whichlooks them by pressure. The disk 0? comprises a fixed projection 2'(Fig. 3) which limitsits rotation in both directions, being engagedbet-ween a fixed stop 7' in,- tegral with the cup f and an adjustablestop 70'. The adjustable stop'lc is formed by the head of a screwsecured in a collar 1 which is concentric with the central pivot f ofthe cup f. By tightening the screw is the collar 1 can be locked in thedesired position.

The receiving apparatus 1) is identical with the transmitting apparatusa. Nevertheless the stops. are .unnecessar and the operating lever e isreplaced by t e member intended to be displaced relatively such as ahand index, control handle or the like.

-A number of receivers can be actuated by one and the same transmitter.For this purpose the arrangement diagrammatically indicated in Figs. 7and 8 may be utilized. The disk (1 is provided with a single groove. Thecup f receives as many tangential sockets as there are receivingapparatus and each cable is wound on a portion of the arc of the groovein the disk. The disk might equally well be provided with a number ofparallel grooves, each cable being wound in one of them as illustratedin Fig. 9.

It is obvious that the invention is not limited to the particular formsthat have been described and that any modifications may be introducedwhich do notdepart from the principle employed. Thus for example one ofthe transmitting or receiving members may be rectilinearly displaced ifthe. transmission or receiving movements render this arrangement morepractical. This is dia-' grammatically illustrated in Fig. 10 where thelever m is represented as rectilinearly reciprocated by the lockinglever e.

I claim as my invention p 1. A device of the character described,

in which the extremity of the sheath or encomprising an oscillatingmember, a support on which the same is pivoted, a cable comprising asheath abutting said support, a flexible helicoidal member within thesheath; an abutment therefor on the oscillating member and a flexiblewire element extending longitudinally within the helicoidal member andmeans for securing the end of said wire element to the oscillatingmember.

2. A device of the character described, comprising a support, anoscillating member pivoted thereon and providedwith a cable grooveterminating in an abutment, a cable lying in said groove and having ahelicoidal member the end of which bears under compression against saidabutment and a flexible wire element extending longitudinally within thehelicoidal member and means for securing said wire element to theoscillating member.

3. A device of the character described, comprising a support, anoscillating member pivoted thereon and provided with a cable grooveterminating in an apertured abutment, a cable lying in said groove andhaving a helicoidal member the end of which bears under compressionagainst said abutment'an'd a flexible wire element extendinglongitudinally within the helicoidal member and passing through theaperture in the abutment for the latter, together with means forsecuring said wire element to the oscillating member.

4. A device of the character described comprising a cup shaped supportwith bearing hub, an oscillating member pivoted on said hub, and havinga cable groove terminating in an abutment, a cable lying in said grooveand having a helicoidal member the end of which bears under compressionagainst said abutment and a flexible wire element extendinglongitudinally within the helicoidal member and fixed to the oscillatingmember, a fixed stop on said support, an adjustable stop mounted on saidhub, and a lug on said oscillating member working between thesaid stopson the support, sub stantially as described.

5. A transmission device of the character described comprising a pair ofsupports, a pair of oscillating members pivoted thereon and providedwith cable grooves terminatin in abutments, a cable extending betweensaid oscillating members and having a helicoidal member hearing at itsopposite ends under compression against said abutments and a flexiblewire element extending longitudinally within the helicoidal member undertension and secured at its opposite ends to said oscillating members,for the purpose described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

NICOLAS HERZMARK.

Witnesses:

HANSON C. Coxn, LoN PEILLET,

